From: Hannes Reinecke <hare@suse.de>
To: Jitendra Bhivare <jitendra.bhivare@avagotech.com>,
linux-scsi@vger.kernel.org, michaelc@cs.wisc.edu
Subject: Re: [PATCH 12/15] be2iscsi: Fix IOPOLL implementation
Date: Fri, 18 Dec 2015 10:04:50 +0100 [thread overview]
Message-ID: <5673CC32.7020204@suse.de> (raw)
In-Reply-To: <1450194906-12925-13-git-send-email-jitendra.bhivare@avagotech.com>
On 12/15/2015 04:55 PM, Jitendra Bhivare wrote:
> From: Jitendra <jitendra.bhivare@avagotech.com>
>
> OS not responding when running 2 port traffic on 72 CPUs system.
>
> be2iscsi IRQs gets affined to CPU0 when irqbalancer is disabled.
> be_iopoll processing completions in BLOCK_IOPOLL_SOFTIRQ hogged CPU0.
>
> 1. Use budget to exit the polling loop. beiscsi_process_cq didn't honour it.
> 2. Rearming of EQ is done only after iopoll completes.
>
> Signed-off-by: Jitendra <jitendra.bhivare@avagotech.com>
> ---
> drivers/scsi/be2iscsi/be_cmds.c | 2 +-
> drivers/scsi/be2iscsi/be_iscsi.c | 2 +-
> drivers/scsi/be2iscsi/be_main.c | 91 +++++++++++++++++++++-----------------
> drivers/scsi/be2iscsi/be_main.h | 5 +-
> 4 files changed, 56 insertions(+), 44 deletions(-)
>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2015-12-18 9:04 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-15 15:54 [PATCH 00/15] be2iscsi: driver update 11.0.0.0 Jitendra Bhivare
2015-12-15 15:54 ` [PATCH 01/15] be2iscsi: Fix soft lockup in mgmt_get_all_if_id path using bmbx Jitendra Bhivare
2015-12-18 8:58 ` Hannes Reinecke
2015-12-15 15:54 ` [PATCH 02/15] be2iscsi: Fix mbox synchronization replacing spinlock with mutex Jitendra Bhivare
2015-12-18 8:59 ` Hannes Reinecke
2015-12-20 7:35 ` Mike Christie
2015-12-20 7:47 ` Mike Christie
2015-12-15 15:54 ` [PATCH 03/15] be2iscsi: Fix to use atomic operations for tag_state Jitendra Bhivare
2015-12-18 8:59 ` Hannes Reinecke
2015-12-20 7:44 ` Mike Christie
2015-12-20 9:01 ` Mike Christie
2015-12-20 10:13 ` Mike Christie
2015-12-21 4:47 ` Jitendra Bhivare
2015-12-15 15:54 ` [PATCH 04/15] be2iscsi: Fix to synchronize tag allocation using spin_lock Jitendra Bhivare
2015-12-18 8:59 ` Hannes Reinecke
2015-12-15 15:54 ` [PATCH 05/15] be2iscsi: Set mbox timeout to 30s Jitendra Bhivare
2015-12-18 9:00 ` Hannes Reinecke
2015-12-15 15:54 ` [PATCH 06/15] be2iscsi: Added return value check for mgmt_get_all_if_id Jitendra Bhivare
2015-12-18 9:00 ` Hannes Reinecke
2015-12-15 15:54 ` [PATCH 07/15] be2iscsi: Fix to remove shutdown entry point Jitendra Bhivare
2015-12-18 9:01 ` Hannes Reinecke
2015-12-15 15:54 ` [PATCH 08/15] be2iscsi: Fix VLAN support for IPv6 network Jitendra Bhivare
2015-12-18 9:01 ` Hannes Reinecke
2015-12-15 15:55 ` [PATCH 09/15] be2iscsi: Fix to handle misconfigured optics events Jitendra Bhivare
2015-12-18 9:02 ` Hannes Reinecke
2015-12-15 15:55 ` [PATCH 10/15] be2iscsi: Add FW config validation Jitendra Bhivare
2015-12-18 9:03 ` Hannes Reinecke
2015-12-21 2:57 ` Jitendra Bhivare
2015-12-21 3:59 ` Jitendra Bhivare
2015-12-15 15:55 ` [PATCH 11/15] be2iscsi: Fix return value for MCC completion Jitendra Bhivare
2015-12-18 9:04 ` Hannes Reinecke
2015-12-15 15:55 ` [PATCH 12/15] be2iscsi: Fix IOPOLL implementation Jitendra Bhivare
2015-12-18 9:04 ` Hannes Reinecke [this message]
2015-12-15 15:55 ` [PATCH 13/15] be2iscsi: Fix to process 25G link speed info from FW Jitendra Bhivare
2015-12-18 9:07 ` Hannes Reinecke
[not found] ` <CAOA9gs36+ozeo=ZtqHYMvznwMSG6wKnG_zLOp__=wnKMkKv0CA@mail.gmail.com>
2015-12-21 7:13 ` Hannes Reinecke
2015-12-15 15:55 ` [PATCH 14/15] be2iscsi: Fix WRB leak in login/logout path Jitendra Bhivare
2015-12-18 9:08 ` Hannes Reinecke
2015-12-15 15:55 ` [PATCH 15/15] be2iscsi: Update the driver version Jitendra Bhivare
2015-12-18 9:08 ` Hannes Reinecke
2015-12-18 9:11 ` [PATCH 00/15] be2iscsi: driver update 11.0.0.0 Hannes Reinecke
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5673CC32.7020204@suse.de \
--to=hare@suse.de \
--cc=jitendra.bhivare@avagotech.com \
--cc=linux-scsi@vger.kernel.org \
--cc=michaelc@cs.wisc.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).